The ever-increasing need for water, the alteration in climate, and its observed changes over recent years have triggered a lot of research studies associated with phenomenon drought. Within wider geographical region Mediterranean, relevant scientific subject seems to be great interest, since it is undoubtedly related number severe socio-economic consequences. This present effort focuses on evol...

The Standardized Precipitation Index (SPI) has become a popular measure of drought across the globe. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information system (GIS) software and Kriging method used for extracting dry areas. The zoning maps show most severe drought i...

regional vegetation plays an important role in modeling ecosystem changes and conservation. meteorological drought indices which are directly obtained from such meteorological data as precipitation can't be useful in drought monitoring if those data are absence. therefore, remote sensing techniques may provide an efficient technique for drought monitoring. in this study, the values of norm...

Most of cryptographic protocols are subjects to very subtle attacks. Therefore, many researchers have developed tools to model and analyze protocols to guarantee their security properties. The spi calculus has proved to be useful for analyzing and reasoning on cryptographic protocols. However, current works assumed that the spi calculus dealt with transferring a single unstructured message for ...

Hydrological drought analysis using SDI index in Halilrud basin of Iran Abstract Nowadays, drought is considered as damaging environmental phenomenon which affects natural resources and social communities. Therefore it will be an important issues that magnitude and effects of these phenomena to be considered. To do this we used L-moment method for regional homogeneity testing. The Streamflow Dr...

Global warming has resulted in increasingly frequent and severe drought and/or precipitation events. Severe drought limits crop water availability and impacts agricultural productivity and socioeconomic development. To quantify drought-induced yield loss during the main crop stages in Liaoning province, China, aspects of drought episodes (magnitude, duration, and frequency) were investigated du...

The evaluation of the meteorological drought is fundamental for management water resource. One most used indices to evaluate standardized precipitation index (SPI) due its practicality and in a variety time scales, however, this uses as only variable, depending on deviations values. This important when evaluating SPI, because some ecosystems close equatorial zone, there are very warm periods wi...

The ETS protein Spi-1/Pu.1 plays a pivotal and widespread role throughout hematopoiesis in many species. This study describes the identification, characterization, and functional analysis of a new zebrafish spi transcription factor spi-1-like (spi-1l) that is expressed in primitive myeloid cells, erythro-myelo progenitor cells, and in the adult kidney. Spi-1l functions genetically downstream of...